package itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import itheima.reggie.common.R;
import itheima.reggie.entity.Employee;
import itheima.reggie.service.EmployeeService;
import itheima.reggie.utils.BaseContext;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.DigestUtils;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;


@Slf4j
@RestController
@RequestMapping("/employee")
public class EmployeeController {
    @Autowired
    private EmployeeService employeeService;

    @PostMapping("/login")
    public R<Employee> login(HttpServletRequest request, @RequestBody Employee employee){
        //md5解密
        String password=employee.getPassword();
        password= DigestUtils.md5DigestAsHex(password.getBytes());
        //根据用户名查询数据库
        LambdaQueryWrapper<Employee> queryWrapper=new LambdaQueryWrapper<>();
        queryWrapper.eq(Employee::getUsername,employee.getUsername());
        Employee emp=employeeService.getOne(queryWrapper);
        //没有查询到，返回登录失败
        if (emp==null){
            return R.error("登录失败");
        }
        //比对密码
        if (!emp.getPassword().equals(password)){
            return R.error("登录失败");
        }
        //查看员工状态
        if (emp.getStatus()==0){
            return R.error("账号已禁用");
        }
        //登录成功 将id传入session
        request.getSession().setAttribute("employee",emp.getId());
        return R.success(emp);
    }

    //员工退出
    @PostMapping("/logout")
    public R<String> logout(HttpServletRequest request){
        request.getSession().removeAttribute("employee");
        return R.success("退出成功");
    }
    //添加员工
    @PostMapping
    public R<String> save(HttpServletRequest request,@RequestBody Employee employee){
        if (BaseContext.getCurrentId()!=1){return R.error("当前用户只能查看！！");}
        log.info("新增员工{}",employee.toString());
        //设置初始密码为123456
        employee.setPassword(DigestUtils.md5DigestAsHex("123456".getBytes()));

//        employee.setCreateTime(DateUtils.DateFormat(new Date()));
//        employee.setUpdateTime(DateUtils.DateFormat(new Date()));
//        Long empId=(Long) request.getSession().getAttribute("employee");
//        employee.setCreateUser(empId);
//        employee.setUpdateUser(empId);

        try {
            employeeService.save(employee);
        }catch (Exception e){
            e.printStackTrace();
            return R.error("添加失败，用户名已存在!!!");
        }
        return R.success("添加成功");
    }
    //分页查询

    @GetMapping("/page")
    public R<Page> queryInfo(int page,int pageSize,String name){
        log.info("page={},pageSize={},name={}",page,pageSize,name);
        //构造分页构造器
        Page pageInfo=new Page(page,pageSize);

        //构造条件构造器
        LambdaQueryWrapper<Employee> queryWrapper=new LambdaQueryWrapper();
        //添加过滤条件
        queryWrapper.like(StringUtils.isNotEmpty(name),Employee::getName,name);
        //添加排序条件
        queryWrapper.orderByDesc(Employee::getUpdateTime);
        //执行查询
        employeeService.page(pageInfo,queryWrapper);
        return R.success(pageInfo);

    }

    /**
     * 根据id修改员工信息
     * @param employee
     * @return
     */

    @PutMapping
    public R<String> update(HttpServletRequest request,@RequestBody Employee employee){
        //获取修改者id
        Long emp=(Long) request.getSession().getAttribute("employee");
        if (BaseContext.getCurrentId()!=1){return R.error("当前用户只能查看！！");}
//        employee.setUpdateUser(emp);
//        employee.setUpdateTime(DateUtils.DateFormat(new Date()));
        //更新
        employeeService.updateById(employee);
        return R.success("员工信息更新成功！");
    }
    @GetMapping("/{id}")
    public R<Employee> getById(@PathVariable Long id){
        if (BaseContext.getCurrentId()!=1){return R.error("请联系管理员！");}
        log.info("根据id查询员工信息..");
        Employee employee=employeeService.getById(id);
        if (employee !=null ){ return R.success(employee);}
        return R.error("没有找到对应员工！！！");
    }
}
